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It the area of Circle is 314cmsquare then its perimeter is (use π=3.14)

Posted by S M Şhrey Manawat 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Anshul Kumar Parira 6 years, 1 month ago

Area of the circle= 314 sq.cm Area of the circle = πr^2 314 = 3.14 ×r^2 314 =314/100×r^2 314×100/314=r^2 100=r^2 r=10cm Circumference or perimeter of the circle= 2πr =2×3.14×10 = 2×31.4 = 62.8cm

1Thank You

Yogita Ingle 6 years, 1 month ago

Area of circle = 314 cm
Πr²=314
3.14×r² = 314
r²=314 / 3.14
r²=(314×100) / 314
r²=100
r=10
Circumference = 2Πr
=> 2×3.14×10
=> 62.8cm²

2Thank You

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CBSE > Class 10 > Mathematics